TECH TIPMinimum size threads are, by default, listed in this catalog to 'fine pitch inserts.' Please keep this in mind when picking an Advent Tool; especially for your I.D. thread form. Too large a cutter diameter relative to the minor diameter of your thread form will have adverse effects on every aspect of your thread/form milling operation(s). For example, a #125-TA-78-F3 tool loaded with 12 pitch inserts has a cutter diameter of 0.970". The same tool loaded with 8 pitch (or even tapered form inserts) has a cutter diameter of 1.100"! In cases like these, with your minor diameter in mind, you may opt to choose a smaller diameter Advent Tool: But by all means contact us or your local representative for guidance!

Products specifications

(d) Cutter Dia. for IH:0.250

0.844 (21.44)

(d) Cutter Dia. for IH:0.310

0.964 (24.49)

Insert Size

38B

(l) Length of Cut

1.500 (38)

Number of Flutes

3

(L) Overall Tool Length

9.0 (229)

(D) Shank Diameter

0.875

UN Minimum I.D. Thread (Fine pitch only)

1

ISO Minimum I.D. Thread (Fine pitch only)

M27

NPT Minimum I.D. Thread

1"-11.5NPT

Special Tool Version or Modification

Round shank only without Weldon flat for hydraulic and shrink fit applications

TECH TIPMinimum size threads are, by default, listed in this catalog to 'fine pitch inserts.' Please keep this in mind when picking an Advent Tool; especially for your I.D. thread form. Too large a cutter diameter relative to the minor diameter of your thread form will have adverse effects on every aspect of your thread/form milling operation(s). For example, a #125-TA-78-F3 tool loaded with 12 pitch inserts has a cutter diameter of 0.970". The same tool loaded with 8 pitch (or even tapered form inserts) has a cutter diameter of 1.100"! In cases like these, with your minor diameter in mind, you may opt to choose a smaller diameter Advent Tool: But by all means contact us or your local representative for guidance!

Products specifications

(d) Cutter Dia. for IH:0.250

0.844 (21.44)

(d) Cutter Dia. for IH:0.310

0.964 (24.49)

Insert Size

38B

(l) Length of Cut

1.500 (38)

Number of Flutes

3

(L) Overall Tool Length

9.0 (229)

(D) Shank Diameter

0.875

UN Minimum I.D. Thread (Fine pitch only)

1

ISO Minimum I.D. Thread (Fine pitch only)

M27

NPT Minimum I.D. Thread

1"-11.5NPT

Special Tool Version or Modification

Round shank only without Weldon flat for hydraulic and shrink fit applications

TECH TIPMinimum size threads are, by default, listed in this catalog to 'fine pitch inserts.' Please keep this in mind when picking an Advent Tool; especially for your I.D. thread form. Too large a cutter diameter relative to the minor diameter of your thread form will have adverse effects on every aspect of your thread/form milling operation(s). For example, a #125-TA-78-F3 tool loaded with 12 pitch inserts has a cutter diameter of 0.970". The same tool loaded with 8 pitch (or even tapered form inserts) has a cutter diameter of 1.100"! In cases like these, with your minor diameter in mind, you may opt to choose a smaller diameter Advent Tool: But by all means contact us or your local representative for guidance!

Products specifications

(d) Cutter Dia. for IH:0.250

0.844 (21.44)

(d) Cutter Dia. for IH:0.310

0.964 (24.49)

Insert Size

38B

(l) Length of Cut

1.500 (38)

Number of Flutes

3

(L) Overall Tool Length

9.0 (229)

(D) Shank Diameter

0.875

UN Minimum I.D. Thread (Fine pitch only)

1

ISO Minimum I.D. Thread (Fine pitch only)

M27

NPT Minimum I.D. Thread

1"-11.5NPT

Special Tool Version or Modification

Round shank only without Weldon flat for hydraulic and shrink fit applications